On 29 May 2017 at 06:47, Andreas Tscharner <[email protected]> wrote:
> On 22.05.2017 10:13, Andreas Tscharner wrote: > >> Hello World, >> >> > Hello again, > > [snip] > >> FATAL: Befehlsausführung fehlgeschlagen >> java.io.IOException: Backing channel 'JNLP4-connect connection from >> build-vm1/192.168.168.160:1033' is disconnected. >> > [snip] > > I have found some more information in /var/log/jenkins/jenkins.log: > > > Mai 28, 2017 2:02:59 PM hudson.slaves.ChannelPinger$1 onDead > INFORMATION: Ping failed. Terminating the channel JNLP4-connect connection > from build-vm3/192.168.168.162:1033. > java.util.concurrent.TimeoutException: Ping started at 1495972739294 > hasn't completed by 1495972979294 > at hudson.remoting.PingThread.ping(PingThread.java:130) > at hudson.remoting.PingThread.run(PingThread.java:86) > > > I've calculated the value between those two timestamps: 240000. I suppose > that are ms which would be 4 minutes. > Is there anything I could do? Why would the ping be dead for more than 4 > minutes? The ping is an application level ping, i.e. it submits a command into the command queue and waits for the response to be generated. The command channel can be functioning, but if there is a backlog in the command queue on either side and the command takes longer than 4 minutes (configurable) then the channel is disconnected. The command queue is single threaded. So there are multiple things that can cause the issue, e.g.: * Transferring large artifacts between the master and the agent * Plugin causing deadlock on the agent and prevent * etc You may want to investigate the agent logs You may want to monitor Disk I/O and CPU and memory usage (especially if running all things on the one machine) You may want to monitor Network I/O if running agents over a remote network HTH > > TIA and best regards > Andreas > -- > Andreas Tscharner <[email protected]> > ---------------------------------------------------------------------- > "Intruder on level one. All Aliens please proceed to level one." > -- Call in "Alien: Resurrection" > > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ms > gid/jenkinsci-users/ba3c7ec3-dfee-a128-2bc4-a31ec402e573%40gmail.com. > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/CA%2BnPnMymOoyTz4Pd8cnrEkP5U%2BsuzVjUA0sw_purYfuVvQbGJw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
